我想将字典写入YAML文件,这是到目前为止我正在做的事情
from ruamel.yaml import YAML
Flavor_Details = {'Flavor_Details':{
'type': 'OS::Nova::Flavor',
'properties': {
'name': 'test-flavor',
'extra_specs': {"hw:cpu_policy": 'shared'},
'ram': 4096,
'vcpus': 4,
'disk': 8
}
}}
output_section = {
'server_public_ip':{
'description': 'Floating IP address of server',
'value': { 'get_attr': [ 'server_floating_ip', 'ip' ] }
}
}
resources_dict = {}
resources_dict.update(Flavor_Details)
resources_dict.update(output_section)
yaml = YAML(typ= 'safe')
with open('test.yaml', 'w') as outfile:
yaml.dump(resources_dict,outfile)
这是YAML文件中的结果
Flavor_Details:
properties:
disk: 8
extra_specs: {hw:cpu_policy: shared}
name: test-flavor
ram: 4096
vcpus: 4
type: OS::Nova::Flavor
server_public_ip:
description: Floating IP address of server
value:
get_attr: [server__floating_ip, ip]
但是我想要这样的结果:
Flavor_Details:
properties:
disk: 8
extra_specs: {"hw:cpu_policy": shared}
name: test-flavor
ram: 4096
vcpus: 4
type: OS::Nova::Flavor
server_public_ip:
description: Floating IP address of server
value: {get_attr: [server__floating_ip, ip]}
我想要将其"hw:cpu_policy"
作为字符串,因为在和:
之间,hw
并且在cpu_policy
中,value
我想要{get_attr: [server__floating_ip, ip]}
这样。
有什么办法可以得到这样的东西吗?
您可以得到想要的东西,但是不能使用安全的倾卸器。基于C的基础代码不允许您想要细粒度的控件。
您将需要使用默认的(往返)转储程序,它可以进行这种详细的控制,因为它需要它来尝试并保留往返的布局。
我希望您认识到,hw:cpu_policy
根据YAML规范,YAML文件中的引号不是必需的,但是YAML解析器的某些错误实现对此存在问题。
import sys
import ruamel.yaml
def Q(s):
return ruamel.yaml.scalarstring.DoubleQuotedScalarString(s)
def F(*args, **kw):
x = ruamel.yaml.comments.CommentedMap()
x.fa.set_flow_style()
for a in args:
x.update(a)
x.update(kw)
return x
Flavor_Details = {'Flavor_Details':{
'type': 'OS::Nova::Flavor',
'properties': {
'name': 'test-flavor',
'extra_specs': F({Q("hw:cpu_policy"): 'shared'}),
'ram': 4096,
'vcpus': 4,
'disk': 8
}
}}
output_section = {
'server_public_ip':{
'description': 'Floating IP address of server',
'value': F(get_attr=['server_floating_ip', 'ip'])
}
}
resources_dict = {}
resources_dict.update(Flavor_Details)
resources_dict.update(output_section)
yaml = ruamel.yaml.YAML()
# yaml.indent(mapping=4, sequence=4, offset=2)
yaml.dump(resources_dict, sys.stdout)
这使:
Flavor_Details:
type: OS::Nova::Flavor
properties:
name: test-flavor
extra_specs: {"hw:cpu_policy": shared}
ram: 4096
vcpus: 4
disk: 8
server_public_ip:
description: Floating IP address of server
value: {get_attr: [server_floating_ip, ip]}
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